CN112059139A - Intelligent monitoring method for hydraulic high-vacuum valve of die casting machine die - Google Patents
Intelligent monitoring method for hydraulic high-vacuum valve of die casting machine die Download PDFInfo
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- CN112059139A CN112059139A CN202010947117.6A CN202010947117A CN112059139A CN 112059139 A CN112059139 A CN 112059139A CN 202010947117 A CN202010947117 A CN 202010947117A CN 112059139 A CN112059139 A CN 112059139A
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- vacuum valve
- hydraulic high
- plc
- hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
Abstract
The invention relates to an intelligent monitoring method for a hydraulic high vacuum valve of a die casting machine die, which comprises the steps that when a PLC receives a die assembly in-place signal sent by a die casting machine, the PLC controls a valve to be opened, whether the valve is in place or not is monitored, if the valve is not in place, an alarm is output, the next cycle is started after the position is monitored, data are recorded on the response speed of the valve, a closing link is added, and the closing judgment and the opening of the valve are the same; when the PLC receives a die opening in-place signal, the circulation control is completed; and finally, completing PLC data acquisition through OPC, and sending the PLC data to a PC/mobile terminal in real time for data monitoring and early warning. According to the invention, the high-efficiency logic control of the hydraulic valve group is realized through PLC programming, the production process space and the production efficiency are improved, and meanwhile, the control switching under different processes can be realized to the greatest extent, so that the service life of the hydraulic valve is prolonged, the field data collection is completed by utilizing OPC and is sent to a PC and a mobile phone terminal in real time, the parameter early warning value is set, and the prediction and maintenance are carried out in advance.
Description
Technical Field
The invention relates to an intelligent monitoring method for a hydraulic high vacuum valve of a die casting machine die, which completes control setting under different process requirements through a touch screen and realizes real-time monitoring of process data of the hydraulic high vacuum valve by utilizing a PC and a mobile phone terminal.
Background
In the die-casting production process, high vacuum pumping is carried out on a die cavity, which is an important link for improving the product quality and reducing the rejection rate, however, the whole vacuum pumping time is very short, and the control mode of the hydraulic high vacuum valve is simple and has no applicability at present. Meanwhile, the process parameters of the conventional hydraulic high-vacuum valve are generally displayed through an on-site industrial control screen, and an engineering technician cannot output and monitor the action process data of the hydraulic high-vacuum valve in real time, so that the problem of vacuumizing the hydraulic high-vacuum valve cannot be found in time, the product is easily scrapped in batches, the vacuumizing machine is damaged, the downtime is greatly increased, the product quality is finally reduced, and the productivity is reduced.
Disclosure of Invention
The invention aims to provide an intelligent monitoring method for a hydraulic high-vacuum valve of a die casting machine die, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: when a PLC receives a die assembly in-place signal sent by a die casting machine, the PLC controls the hydraulic high vacuum valve to be opened and monitors whether the hydraulic high vacuum valve is in place or not, if the hydraulic high vacuum valve is not in place, an alarm is output, the hydraulic high vacuum valve enters the next cycle after the position is monitored, and meanwhile, data are recorded on the response speed of the hydraulic high vacuum valve; the quick control of the hydraulic high-vacuum valve bank is realized by utilizing a high-speed response output point in the PLC, and the on-position response time counting is carried out by utilizing a built-in high-speed counter of the PLC;
in the vacuumizing process, the closing link is added by utilizing the characteristics of the hydraulic high-vacuum valve, so that the closing speed of the hydraulic high-vacuum valve is increased, and the closing judgment and the opening of the hydraulic high-vacuum valve are the same;
when the PLC receives a die opening in-place signal, the circulation control is completed;
and finally, completing PLC data acquisition through OPC, and sending the PLC data to a PC/mobile terminal in real time for data monitoring and early warning.
The invention is further improved in that: when a PLC receives a die assembly in-place signal sent by a die casting machine, a high-speed point in the PLC is quickly powered on, a high-speed signal is output, vacuumizing is started, a hydraulic high-vacuum valve is opened, a high-speed counter in the PLC is used for counting and judging the action of the hydraulic high-vacuum valve, if the opening time of the hydraulic high-vacuum valve exceeds the normal set time or the hydraulic high-vacuum valve is not opened in place, an alarm is output and recorded in a field industrial control screen, and meanwhile, data is acquired in real time through an OPC server, namely a wireless monitor, and is encrypted and sent to a designated PC/mobile terminal for data monitoring and analysis, so that;
when the high-speed position receives a signal, a high-speed point is used for sending an instruction for closing the hydraulic high-vacuum valve to complete the closing action of the hydraulic high-vacuum valve, a high-speed counter is used for counting and judging the action of the hydraulic high-vacuum valve, the control process of the hydraulic high-vacuum valve is completed under the condition, and the next cycle is started;
and finally, data are acquired and encrypted by the wireless monitor and transmitted to a designated PC/mobile terminal, so that process monitoring and early warning are realized.
The invention is further improved in that: the response speed of a single high-speed signal in the whole process is controlled within 10 mu s, the response speed of the hydraulic high-vacuum valve is controlled within 90ms to the maximum extent by utilizing the characteristics of the three-position four-way hydraulic high-vacuum valve group and adopting a program calling form.
The invention is further improved in that: the alarm range can be set according to different process requirements through the mobile phone end, the state data can be displayed in real time, meanwhile, the historical data can be recorded by the PC/mobile terminal, can be exported in a chart form, process data analysis is facilitated, the alarm time interval can also be freely set, alarm information is sent to designated personnel at regular time, and management is facilitated.
Compared with the prior art, the invention has the beneficial effects that:
the invention has the advantages of stability and reliability in system, strong applicability, high-efficiency logic control on the high-vacuum hydraulic valve, capability of meeting the requirements of different processes, real-time monitoring of the daily production process, early warning in advance and timely maintenance, and provides a high-efficiency control and process monitoring scheme for the high-vacuum die-casting technology.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a control schematic of the present invention;
FIG. 3 is a mobile phone monitoring control interface;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The nodes of the links in the die-casting vacuumizing process are more, and the degree of freedom of vacuum valve control can be greatly improved by reasonably controlling all parts of a hydraulic system of the hydraulic high-vacuum valve.
As shown in fig. 1, the present embodiment provides a technical solution: when a PLC receives a die assembly in-place signal sent by a die casting machine, the PLC controls the hydraulic high vacuum valve to be opened and monitors whether the hydraulic high vacuum valve is in place or not, if the hydraulic high vacuum valve is not in place, an alarm is output, the hydraulic high vacuum valve enters the next cycle after the position is monitored, and meanwhile, data are recorded on the response speed of the hydraulic high vacuum valve; the quick control of the hydraulic high-vacuum valve bank is realized by utilizing a high-speed response output point in the PLC, and the on-position response time counting is carried out by utilizing a built-in high-speed counter of the PLC;
in the vacuumizing process, the closing link is added by utilizing the characteristics of the hydraulic high-vacuum valve, so that the closing speed of the hydraulic high-vacuum valve is increased, and the closing judgment and the opening of the hydraulic high-vacuum valve are the same;
when the PLC receives a die opening in-place signal, the circulation control is completed;
and finally, completing PLC data acquisition through OPC, and sending the PLC data to a PC/mobile terminal in real time for data monitoring and early warning.
As shown in fig. 2, when a PLC receives a die closing in-place signal X002 sent by a die casting machine, a high-speed point X000 in the PLC is quickly powered on, a high-speed signal Y001 is output to start vacuum pumping, a hydraulic high vacuum valve is opened, meanwhile, a high-speed counter in the PLC is used for counting and judging the action of the hydraulic high vacuum valve, if the opening time of the hydraulic high vacuum valve exceeds the normal set time or the hydraulic high vacuum valve is not opened in place, an alarm is output and recorded in a field industrial control screen, and simultaneously, data is acquired in real time through an OPC server, namely a wireless monitor, and is encrypted and sent to a designated PC/mobile terminal for data monitoring and analysis, so that;
when the high-speed position receives a signal X001, a high-speed point is also utilized to output a high-speed signal Y001 to send a command for closing the hydraulic high-vacuum valve, the closing action of the hydraulic high-vacuum valve is completed, a high-speed counter is utilized to count and judge the actions of the hydraulic high-vacuum valve, the control process of the hydraulic high-vacuum valve is completed according to the conditions, and the next cycle is started;
and finally, data are acquired and encrypted by the wireless monitor and transmitted to a designated PC/mobile terminal, so that process monitoring and early warning are realized.
The response speed of a single high-speed signal in the whole process is controlled within 10 mu s, the response speed of the hydraulic high-vacuum valve is controlled within 90ms to the maximum extent by utilizing the characteristics of the three-position four-way hydraulic high-vacuum valve group and adopting a program calling form.
As shown in fig. 3, the alarm range can be set according to different process requirements through the mobile phone terminal, the state data can be displayed in real time, meanwhile, the historical data can be recorded by the PC/mobile terminal, can be exported in a chart form, and is convenient for process data analysis, the alarm time interval can also be freely set, and the alarm information can be sent to designated personnel at regular time, so that the management is convenient.
The invention uses the PLC of the die casting machine body to program, and makes a configuration monitoring picture in an industrial control screen to carry out data field monitoring alarm, and uses the green scale LKD-135765 wireless monitor to realize data acquisition and transmission, thereby realizing the remote real-time monitoring function. According to the invention, the efficient logic control of the hydraulic valve group is realized through PLC programming, the production process space and the production efficiency are improved, and meanwhile, the control switching under different processes can be realized to the greatest extent, so that the service life of the hydraulic valve is prolonged. The invention utilizes OPC to complete the acquisition of field data, and sends the field data to a PC/mobile phone terminal in real time, sets a parameter early warning value, and predicts and maintains in advance.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The intelligent monitoring method for the hydraulic high-vacuum valve of the die casting machine die is characterized by comprising the following steps of: when the PLC receives a die assembly in-place signal sent by a die casting machine, the PLC controls the hydraulic high vacuum valve to be opened and monitors whether the hydraulic high vacuum valve is opened in place or not, if the hydraulic high vacuum valve is not opened in place, an alarm is output, the next cycle is started after the position is monitored, and meanwhile data are recorded on the response speed of the hydraulic high vacuum valve; the quick control of the hydraulic high-vacuum valve bank is realized by utilizing a high-speed response output point in the PLC, and the on-position response time counting is carried out by utilizing a built-in high-speed counter of the PLC;
in the vacuumizing process, the closing link is added by utilizing the characteristics of the hydraulic high-vacuum valve, so that the closing speed of the hydraulic high-vacuum valve is increased, and the closing judgment and the opening of the hydraulic high-vacuum valve are the same;
when the PLC receives a die opening in-place signal, the circulation control is completed;
and finally, completing PLC data acquisition through OPC, and sending the PLC data to a PC/mobile terminal in real time for data monitoring and early warning.
2. The intelligent monitoring method for the hydraulic high vacuum valve of the die casting machine die according to claim 1, characterized in that: when a PLC receives a die assembly in-place signal sent by a die casting machine, a high-speed point in the PLC is quickly powered on, a high-speed signal is output, vacuumizing is started, a hydraulic high-vacuum valve is opened, a high-speed counter in the PLC is used for counting and judging the action of the hydraulic high-vacuum valve, if the opening time of the hydraulic high-vacuum valve exceeds the normal set time or the hydraulic high-vacuum valve is not opened in place, an alarm is output and recorded in a field industrial control screen, and meanwhile, data is acquired in real time through an OPC server, namely a wireless monitor, and is encrypted and sent to a designated PC/mobile terminal for data monitoring and analysis, so that;
when the high-speed position receives a signal, a high-speed point is used for sending an instruction for closing the hydraulic high-vacuum valve to complete the closing action of the hydraulic high-vacuum valve, a high-speed counter is used for counting and judging the action of the hydraulic high-vacuum valve, the control process of the hydraulic high-vacuum valve is completed under the condition, and the next cycle is started;
and finally, data are acquired and encrypted by the wireless monitor and transmitted to a designated PC/mobile terminal, so that process monitoring and early warning are realized.
3. The intelligent monitoring method for the hydraulic high vacuum valve of the die casting machine die according to claim 2, characterized in that: the response speed of a single high-speed signal in the whole process is controlled within 10 mu s, the response speed of the hydraulic high-vacuum valve is controlled within 90ms to the maximum extent by utilizing the characteristics of the three-position four-way hydraulic high-vacuum valve group and adopting a program calling form.
4. The intelligent monitoring method for the hydraulic high vacuum valve of the die casting machine die according to claim 1, characterized in that: the alarm range can be set according to different process requirements through the mobile phone end, the state data can be displayed in real time, meanwhile, the historical data can be recorded by the PC/mobile terminal, can be exported in a chart form, process data analysis is facilitated, the alarm time interval can also be freely set, alarm information is sent to designated personnel at regular time, and management is facilitated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010947117.6A CN112059139A (en) | 2020-09-10 | 2020-09-10 | Intelligent monitoring method for hydraulic high-vacuum valve of die casting machine die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010947117.6A CN112059139A (en) | 2020-09-10 | 2020-09-10 | Intelligent monitoring method for hydraulic high-vacuum valve of die casting machine die |
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| CN112059139A true CN112059139A (en) | 2020-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116533235A (en) * | 2023-05-09 | 2023-08-04 | 江苏中科云控智能工业装备有限公司 | Big data-based die casting production data transmission system and method |
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| US5022457A (en) * | 1988-01-30 | 1991-06-11 | Toshiba Machine Co., Ltd. | Casting control system of die cast machine |
| US5293693A (en) * | 1992-04-27 | 1994-03-15 | Outboard Marine Corporation | Vacuum valve design for die casting |
| CN1281168A (en) * | 1999-07-16 | 2001-01-24 | 速睦喜股份有限公司 | Method and device for action management of electromagnetic valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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